SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
optik-24.ch
SSL/TLS Certificate
SSL/TLS Certificate for optik-24.ch
Valid- Issued by (CA)
- Let's Encrypt
- Subject
- swisslenses.ch
- Valid from
- Jul 22, 2026
- Valid until
- Oct 20, 2026 (87 days remaining)
- Public key
- RSA 2048-bit
- Serial
- 05B2FE3888034AFF7914CFFE5BECA434B56E
- SHA-256 fingerprint
- C4:DD:08:D8:B8:DF:D5:6B:4F:86:DA:B1:AE:A8:F8:66:84:28:A6:84:4C:61:E1:2C:AB:97:B4:E0:46:C9:12:02
- Chain
- YR1 → Root YR → ISRG Root X1
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 25, 2026.
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Uptime
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DNS changes
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TLS certificate
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